Partridge PPO/2 output transformer .
This OT is Currently sitting on a monoblock kt66/6L6GC chassis, which sadly I have no use for and can't seem to sell
http://imageshack.us/photo/my-images/593/dscn7841.jpg/
I haven't been able to find any spec's on this transformer, so I can't give anymore information.
Price - Offers between $100-150 plus ~$70US international shipping.
Payment by paypal would be simplest :)